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|Type:||Artigo de periódico|
|Title:||NEAR-RESONANT SCATTERING FROM NONSYMMETRIC DIMERS - APPLICATIONS TO SUBSTITUTED POLYANILINES|
|Abstract:||In this work we show that, beyond the prediction of the random dimer model [Wu and Phillips, Phys. Rev. Lett. 66, 1366 (1991)], it is possible to have near resonant scattering from nonsymmetric dimers. It is shown by direct density of states calculations as well as by a procedure similar to the random dimer model that protonated chains of alkyl-substituted polyanilines support extended electronic states at the Fermi energy when a disordered distribution of symmetric or asymmetric bipolarons is present. An extension of the random dimer model to include resonant scattering by nonsymmetric dimers is proposed.|
|Editor:||American Physical Soc|
|Citation:||Physical Review Letters. American Physical Soc, v. 73, n. 9, n. 1267, n. 1270, 1994.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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